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| 1 | Microstructure,Tensile and Impact Toughness Properties of Friction Stir Welded Mild Steel显示文摘Microstructure,tensile and impact toughness properties and fracture location of friction stir welded AISI 1018 mild steel were revealed.The AISI 1018 mild steel plates with thickness of 5 mm were friction stir welded by tungsten based alloy tool with tool rotational speed of 1000 r/min and welding speed of 50 mm/min.Tensile strength of stir zone is higher(8%)compared to that of the base metal.This may be due to the formation of finer grains in the weld nugget region under the stirring action of the rotating tool.The ductility and impact toughness of the joints are decreased compared to those of the base metal owing to the inclusion of tungsten particles in the weld region. | A K Lakshminarayanan V Balasubramanian M Salahuddin | 2010 | Journal of Iron and Steel Research(International)2010，17，10： | 10 |
| 2 | Antimicrobial potential of selected brown seaweeds from Vedalai coastal waters,Gulf of Mannar显示文摘Objective:To evaluate the antimicrobial activity of Turbinaria conoides(T.conoides).Padina gymnospora(P.gymnospora) and Sargassum tenerrimum against human bacterial and fungal pathogens.Methods:The antimicrobial activities of the extracts against various organisms were tested by using disc diffusion method.Results:The methanol extract showed the better result than the other extracts.Whereas,the strong antibacterial inhibition was noted in methanol extracts of P.gymnospora against Bacillus subtilus(26.33±1.86) and the mild inhibition of ethanol extracts from T.conoides against Klebsiella pneumoniae(2.33±0.51).Acetone extraction of P. gymnospora had strong antifungal inhibition against Cryptococcus neoformans(23.00±1.78), and acetone extract of T.conoides had mild inhibition against Aspergillus niger(3.00±0.89). Conclusions:The seven different solvent extracts of seaweeds used in the present study have shown significant bacterial action.Further,a detailed study on the principle compound in the seaweeds which is responsible for antimicrobial activity is still needed and it can be achieved by using advanced separation techniques. | Manivannan K Karthikai devi G Anantharaman P Balasubramanian T | 2011 | Asian Pacific Journal of Tropical Biomedicine2011，1，2： | 9 |
| 3 | Evaluation of Microstructure and Mechanical Properties of Laser Beam Welded AISI 409M Grade Ferritic Stainless Steel显示文摘The microstructure analysis and mechanical properties evaluation of laser beam welded AISI 409M ferritic stainless steel joints are investigated.Single pass autogeneous welds free of volumetric defects were produced at a welding speed of 3 000 mm/min.The joints were subjected to optical microscope,scanning electron fractographe,microhardness,transverse and longitudinal tensile,bend and charpy impact toughness testing.The coarse ferrite grains in the base metal were changed into dendritic grains as a result of rapid solidification of laser beam welds.Tensile testing indicates overmatching of the weld metal is relative to the base metal.The joints also exhibited acceptable impact toughness and bend strength properties. | A K Lakshminarayanan V Balasubramanian | 2012 | Journal of Iron and Steel Research(International)2012，19，1： | 9 |
| 4 | Application of Response Surface Methodolody to Prediction of Dilution in Plasma Transferred Arc Hardfacing of Stainless Steel on Carbon Steel显示文摘The application of response surface methodology was highlighted to predict and optimize the percentage of dilution of iron-based hardfaced surface produced by the PTA (plasma transferred arc welding) process.The experi- ments were conducted based on five-factor five-level central composite rotatable design with full replication technique and a mathematical model was developed using response surface methodology.Furthermore,the response surface methodology was also used to optimize the process parameters that yielded the lowest percentage of dilution. | V Balasubramanian A K Lakshminarayanan R Varahamoorthy S Babu | 2009 | Journal of Iron and Steel Research(International)2009，16，1： | 8 |
| 5 | Effect of Heat Input on Fume Generation and Joint Properties of Gas Metal Arc Welded Austenitic Stainless Steel显示文摘The effect of heat input on fume and their compositions during gas metal arc welding(GMAW)of AISI 316 stainless steel plates are investigated.Fume generation rate(FGR)and fume percentage were determined by ANSI/AWS F1.2 methods.Particle characterization was performed with SEM-XEDS and XRF analysis to reveal the particle morphology and chemical composition of the fume particles.The SEM analysis reveals the morphology of particles having three distinct shapes namely spherical,irregular,and agglomerated.Spherical particles were the most abundant type of individual particle.All the fume particle size falls in the range of less than 100 nm.Mechanical properties(strength,hardness and toughness)and microstructural analysis of the weld deposits were evaluated.It is found that heat input of 1.15 kJ/mm is beneficial to weld stainless steel by GMAW process due to lower level of welding fume emissions and superior mechanical properties of the joints. | K Srinivasan V Balasubramanian | 2011 | Journal of Iron and Steel Research(International)2011，18，10： | 6 |
| 6 | Effect of Autogenous Arc Welding Processes on Tensile and Impact Properties of Ferritic Stainless Steel Joints显示文摘The effect of autogeneous arc welding processes on tensile and impact properties of ferritic stainless steel conformed to AISI 409M grade is studied.Roiled plates of 4 mm thickness have been used as the base material for preparing single pass butt welded joints.Tensile and impact properties,microhardness,microstructure,and fracture surface morphology of continuous current gas tungsten arc welding (CCGTAW),pulsed current gas tungsten arc welding (PCGTAW),and plasma arc welding (PAW) joints are evaluated and the results are compared.It is found that the PAW joints of ferritic stainless steel show superior tensile and impact properties when compared with CCG- TAW and PCGTAW joints,and this is mainly due to lower heat input,finer fusion zone grain diameter,and higher fusion zone hardness. | A K Lakshminarayanan K Shanmugam V Balasubramanian | 2009 | Journal of Iron and Steel Research(International)2009，16，1： | 5 |
| 7 | Effect of Welding Processes on Tensile and Impact Properties,Hardness and Microstructure of AISI 409M Ferritic Stainless Joints Fabricated by Duplex Stainless Steel Filler Metal显示文摘The effect of welding processes such as shielded metal arc welding,gas metal arc welding and gas tungsten arc welding on tensile and impact properties of the ferritic stainless steel conforming to AISI 409M grade is studied.Rolled plates of 4 mm thickness were used as the base material for preparing single pass butt welded joints.Tensile and impact properties,microhardness,microstructure and fracture surface morphology of the welded joints have been evaluated and the results are compared.From this investigation,it is found that gas tungsten arc welded joints of ferritic stainless steel have superior tensile and impact properties compared with shielded metal arc and gas metal arc welded joints and this is mainly due to the presence of finer grains in fusion zone and heat affected zone. | A K Lakshminarayanan K Shanmugam V Balasubramanian | 2009 | Journal of Iron and Steel Research(International)2009，16，5： | 2 |
| 8 | Effect of Welding Processes on Tensile Properties of AA6061 Aluminium Alloy Joints 显示文摘 | Lakshminarayanan A K Balasubramanian V Elangovan K | 2009 | Int J Adv Manuf Technol2009，40，34： | 1 |
| 9 | Polyehlorinated biphenyl ( Aroclor 1254 ) inhibits testosterone biosynthesis and antioxidant enzymes in cultured rat Leydig cells 显示文摘 | P Murugesan T Muthusamy K Balasubramanian | 2008 | Reproductive toxicology2008，25，1： | 1 |
| 10 | Piezoelectric-based fluid bulk modulus sensor显示文摘 | NIEZRECKI C SCHUELLER J K BALASUBRAMANIAN K | 2004 | Journal of lntelligentMaterialSystems and Structures2004，15，12： | 1 |
| 11 | Tracheoesophageal puncture site closure with single perforator-based dehopectoral flap 显示文摘 | Balasubramanian D Iyer S Thankappan K | 2013 | Head Neck2013，35，2： | 1 |
| 12 | Preferential paths in alkali ion migration and the mixed alkali effect in silicate glasses显示文摘 | BALASUBRAMANIAN S RAO K J | 1993 | The Journal of Physical Chemistry1993，97，35： | 1 |
| 13 | Chemically Function- alized Carbon Nanotubes显示文摘 | Balasubramanian K Burghard M | 2005 | Small2005，1，： | 1 |
| 14 | High frequency of type 1 B (idiopathic) diabetes in North Indian Children with recent-onset diabetes显示文摘 | Balasubramanian K Dabadghao P Bhatia V | | 0，，： | 1 |
| 15 | 查看详情显示文摘 | Lee E Balasubramanian K Weitz R T Burghard M Kern K | | 0，，： | 1 |
| 16 | Influences of tool pin profile and tool shoulder diameter on the formation of friction stir processing zone in AA6061 aluminium alloy 显示文摘 | ELAN GO VAN K BALASUBRAMANIAN V | 2008 | Material Design2008，293，： | 1 |
| 17 | Spectrophotometric determination of sulfamic acid in metal sulfamate bath effluents显示文摘 | DEEPA B NAGARAJA K S BALASUBRAMANIAN N | 2005 | Plating and Surface Finishing2005，92，4： | 1 |
| 18 | The effect of expertise,end goal,and product type on adoption of preference formation strategy显示文摘 | KING M F BALASUBRAMANIAN S K | 1994 | Journal of the Academy of Marketing Science1994，22，2： | 1 |
| 19 | Electronic states and potential energy curves of iridium carbide (IrC)显示文摘 | Tan Hang Liao Muzhen Balasubramanian K | 1997 | Chemical Physics Letters1997，280，： | 1 |
| 20 | Effect of welding processes on tensile properties of AA6061 aluminium alloy joints 显示文摘 | Lakshminarayanan A K Balasubramanian V Elangovan K | 2009 | The International Journal of Advanced Manufacturing Technology2009，，： | 1 |
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